Air-brake stop.



v E. V. PALMQUIST 6L H. G. LUNDQUIST. AIR BRAKE STOP.

APPLICATION man MAY 8. I915.

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AIR BRAKE STOP. APPLICATION FILED MAY 8 I915.

a 14 46a w Patented June 19, 1917.

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HELL E. If Pa m aa in? f W J fiZ/"Mmnma S ESKIL V. PALMQUIST, OF HALLANDALE. -ANID HENRY G. LUND QUIST, OF SEMINOLE COUNTY, FLORIDA.

AIRPBRAKE STOP.

Application filed May 8,1915.

To all whom it may concern:

Be it known that we, ESKIL VLPALIVL QUIST, of Hallandale, in the countyof Dade and State of Florida, and HENRY G. LUND- QUIST, of Seminole county, in the State of Florida, citizens of the United States, have invented certain new and useful Improvements in Air-Brake Stops, of which the fol lowing is a specification, reference being had therein to the accompanying drawing. This invention relates to an automatic brake throwing mechanism to be used upon railroad trains and the like, and has for its object the production of a simple and efficient means which may be directly attached to the train pipe for causing the setting of the brakes in cooperation with the ordinary brake throwing mechanism.

Another object of this invention is the production of a simple and efiicient valve means cooperatlng with the train pipe for the purpose of producing an exhaust when the train passes a predetermined point or track instrument.

A still further object of this invention is the production of a simple and efficient track instrument which may be employed in connection with the brake throwing mechanism.

With these and other objects in view this invention consists of certain novel combinations, constructions, and arrangements of parts as will be hereinafter fully described and claimed.

In the accompanying drawings Figure 1 is a side elevation of the rear portion of the tender of the locomotive showing the valve mechanism carried thereby.

Fig. 2 is a top plan view of the track mechanism employed in connection with the present invention, the operating valve and train pipe being shown in combination therewith.

Fig. 3 is a section taken on line 33, of Fig. 2.

Fig. 1 is a vertical section through the valve mechanism.

Fig. 5 is a detail perspective view of the lower section of the valve casing.

Fig. 6 is a transverse sectional view through the valve taken on line 66, of Fig. 4:.

Fig. 7 is a perspective view of the bracket employed in connection with supportingthe valve.

Fig. 8 is a transverse sectional view Specification of Letters Patent.

Patented June 19, 1917. Serial No. 26,871. 7

through the track instrument used in connection with the present device and adapted to be supported to the side of the rail.

Fig. 9 is a top plan view of an embodiment of the present invention showing the operation of the track instrument from adistant point. I

By referring to the drawings it will be seen that 1 designates the tender or other portion of a train upon which the device may be employed. A bracket 2 for supporting the valve casing 3 is secured to the truck .L by having itsparallel jaws 5 fitting over the journal portion of the truck 4 as illus trated in Figs. 1 and 4 of the drawings.

The bracket 2 is provided with a pair of spaced collars 6, which collars have their outwardly extending adjoining ends 7 securely fastened together-by means of bolts 8.

A valve casing 9 is supported within the ring 6, and this casing 9 isprovided with an annular flange 10 around the bottom thereof which is provided with a plurality of laterally extending ears 11. These cars 11 support or engage the cars 12 carried by the tapering cap 13 as clearly illustrated in Figs. A and 5 of the drawings. The tapering cap 13 is provided with a pocket 14 formed therein, which pocket 1 1 carries a vertically movable valve 15 having a valve head 16 formed upon the top thereof for normally closing the passage through the valve seat 17 formed within the cap 13. This structure is clearly illustrated in Figs. 1 and 5 of the drawings. The valve stem 15 is provided with an enlarged-head 18 and a coil spring 19 is carried thereby and engages the head 15, and also engages the lower end of the cap 13 as clearly illustrated in Fig. 4 of the drawings. A discharge port 20 is formed integral with the cap 13 and is provided with a discharge aperture 21 formed therein communicating with the pocket 14.

As clearly illustrated in Fig. 2 of the drawings the train pipe 22 is carried in the usual manner upon the lower face of the train or car, and a supply pipe or communieating pipe 23 is connected thereto by means of an elbow or T joint 25. The pipe 23 is also connected to the elbow 25, which elbow is in turn connected to the body of the valve 9 as clearly illustrated in Fig. 41.

As illustrated in Fig. 2 of the drawings and also in Fig. 1 it will be seen that a supporting plate 26 is positioned to one side of the rails, and to these supporting plates 26 are secured the tripping plates 27 by means of the flanges 28 as clearly illustrated in Fig. 8 of the drawings. Stop brackets 29 are secured to the plates 26 and are provided with upwardly extending port-ions which limit the upward movement of the plates 27 as the same are swung upwardly by means of the crank mechanism 30. This crank mechanism 30 extends transversely of the track and under the rails 31 thereof as clearly illustrated in Fig. 2 and is provided with a plurality of crank portions 32 which are adapted to fit under the tripping plate 27 and throw the same at right angles to the plate 26 or to the position shown in dotted lines in Fig. 8 of the drawings. It should be understood that the crank portions 32 project through the space 33* formed between the plates 26. One end of the crank shaft carries a beveled gear 34, which beveled gear 34 meshes with a beveled gear 35 carried by the operating shaft 36, and this operating shaft 36 carries a crank handle 37 for the purpose of allowing the shaft 36 to be rotated for rotating the shaft 30.

From the foregoing description it will be seen that a very simple and efficient means has been produced for the purpose of set ting the tripping plate 27.

In Fig. 9 there is shown an embodiment of the invention wherein the crank shaft 30 is connected by means of a link 38 to an operating cable'39 to facilitate the operation of the tripping'plate 27 from a distance. A coil spring 40 is connected to the base plate 41 and also to the under face or inner face of the tripping plate 27 so as to normally draw the tripping plate 27 to an inoperative position as soon as the crank portion 32 has been thrown flat upon the supporting or base plate 41.

By carefully considering Fig. 1 it will be seen that the tripping plate 27 is beveled or tapers at each end as indicated by the numeral 27 lower end thereon.

From the foregoing description it will be seen that a very simple and efficient tripping mechanism has been produced for the purpose of setting the air brakes upon a train, providing the train should pass beyond a predetermined point, in view of the fact that the plunger 15 will engage the tripping plate carried to the side of the track and in this manner open the valve 16 and permit the escapement of compressedair for the purpose of applying the air brakes in the usual manner.

Having thus described the invention what is claimed as new, is r In a device ofthe class described, the combination of a bracket, said bracket comprising a body, spaced jaws extending from said for thepurpose of permitting the of the plunger 15 to easily slide body, said jaws being adapted to embrace a truck bolster so as to permit means to pass therethrough for supporting said bracket, a valve member, collars formed upon said body in spaced relation with respect to each other, said collars embracing said valve member, said collars having outwardly extending adjoining ends, said ends engaging each other, and means for holdingthe same together, whereby said collars will positively hold said valve member.

In testimony whereof I hereunto aflix my signature in presence of two witnesses.

ESKLL V. PALMQUIST.

Witnesses CARL O. R. NICHOLS, L. E. STEVENS. In testimony whereof I hereunto afiix my signature in presence of two witnesses.

HENRY G. LUNDQUIST.

WVitnesses THos. E. WILSON, E. F. HAMHOLDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

